1.

Record Nr.

UNINA9910716844803321

Titolo

Understanding anxiety disorders Caregiver : get the facts

Pubbl/distr/stampa

[Rockville, Md.] : , : Department of Health & Human Services, Substance Abuse and Mental Health Services Administration, , [2017]

Descrizione fisica

1 online resource (5 pages)

Collana

HHS publication ; ; no. (SMA) 16-5009

Soggetti

Anxiety disorders

Anxiety in adolescence

Youth - Mental health

Youth - Mental health services

Caregivers

Mental health education

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"May 2017"--SAMHSA publication download webpage.

Nota di bibliografia

Includes bibliographical references (page 5).



2.

Record Nr.

UNINA9911020461703321

Autore

Diston Dominic J

Titolo

Computational Modelling and Simulation of Aircraft and the Environment, Volume 2 : Aircraft Dynamics

Pubbl/distr/stampa

Newark : , : John Wiley & Sons, Incorporated, , 2024

©2024

ISBN

9781118536421

1118536428

9781118536407

1118536401

Edizione

[1st ed.]

Descrizione fisica

1 online resource (208 pages)

Collana

Aerospace Series

Altri autori (Persone)

BelobabaPeter

CooperJonathan

SeabridgeAllan

Soggetti

Aerospace engineering

Aerodynamics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Cover -- Title Page -- Copyright Page -- Contents -- Preface -- Aerospace Series Preface -- Chapter 1 A Simple Flight Model -- 1.1 Introduction -- 1.1.1 General Introduction to Volume 2 -- 1.1.2 What Chapter 1 Includes -- 1.1.3 What Chapter 1 Excludes -- 1.1.4 Overall Aim -- 1.2 Flight Path -- 1.3 Flight Environment &lt -- 20 km -- 1.4 Simple Propulsion Model -- 1.4.1 Reference Parameters -- 1.4.2 Simple Jet Engine Performance -- 1.4.3 'Better' Jet Engine Performance -- 1.4.4 Simple Jet Engine Dynamics -- 1.5 Simple Aerodynamic Model -- 1.5.1 Idealised Aircraft -- 1.5.2 Idealised Wing -- 1.5.3 Wing/Tail Combination -- 1.5.4 Lift Distribution -- 1.5.5 Adding Flight Controls -- 1.6 Airspeed Definitions -- 1.7 Flight Model Architecture -- Chapter 2 Equations of Motion -- 2.1 Introduction -- 2.1.1 The Problem with Equations of Motion -- 2.1.2 What Chapter 2 Includes -- 2.1.3 What Chapter 2 Excludes -- 2.1.4 Overall Aim -- 2.2 Spatial Reference Model -- 2.2.1 Generic Reference Frames -- 2.2.2 Rotating Reference Frames -- 2.2.3 Elementary Rotations -- 2.2.4 Reference Frames for Position



and Orientation -- 2.2.5 Reference Frame for Flight Path -- 2.2.6 Airspeed and Airstream Direction -- 2.3 Aircraft Dynamics -- 2.3.1 Mass Properties -- 2.3.2 Flight Parameters -- 2.3.3 Dynamic Equations of Motion -- 2.4 Aircraft Kinematics -- 2.4.1 Aircraft Position -- 2.4.2 Quaternions -- 2.4.3 Kinematic Equations of Motion -- 2.5 Initialisation -- 2.5.1 Balancing Forces -- 2.5.2 Typical Flight Conditions -- 2.5.3 Finding Aircraft Flight Parameters for Equilibrium -- 2.6 Linearisation -- 2.6.1 Linearisation of Dynamic Equations of Motion -- 2.6.2 Linearisation of Kinematic Equations of Motion -- 2.6.3 Linearisation of Aerodynamic Forces and Moments -- 2.6.4 Linearisation of Propulsive Forces and Moments -- 2.6.5 Linearisation of Gravitational Forces and Moments.

2.6.6 The Complete Linearised System of Equations -- Chapter 3 Fixed-Wing Aerodynamics -- 3.1 Introduction -- 3.1.1 Fixed Wings and Aerodynamics -- 3.1.2 What Chapter 3 Includes -- 3.1.3 What Chapter 3 Excludes -- 3.1.4 Overall Aim -- 3.2 Aerodynamic Principles -- 3.2.1 Aerofoils -- 3.2.2 Dimensional Analysis -- 3.2.3 Lift, Drag, and Pitching Moment -- 3.2.4 Aerodynamic Centre -- 3.2.5 Wing Geometry -- 3.2.6 NACA Four-Digit Sections -- 3.3 Aerodynamic Model of an Isolated Wing -- 3.3.1 Aerodynamic Lift -- 3.3.2 Pitching Moment -- 3.3.3 Drag Force -- 3.3.4 Profile Drag -- 3.3.5 Induced Drag -- 3.3.6 Wave Drag -- 3.4 Trailing-Edge Controls -- 3.4.1 Incremental Lift -- 3.4.2 Incremental Drag -- 3.4.3 Incremental Pitching Moment -- 3.4.4 Hinge Moments -- 3.5 Factors affecting Lift Generation -- 3.5.1 Sideslip -- 3.5.2 Aircraft Rotation -- 3.5.3 Structural Flexibility -- 3.5.4 Ground Effect -- 3.5.5 Indicial Aerodynamics -- 3.6 Lift Distribution -- 3.7 Drag Distribution -- Chapter 4 Longitudinal Flight -- 4.1 Introduction -- 4.1.1 Flight with Wings Level -- 4.1.2 What Chapter 4 Includes -- 4.1.3 What Chapter 4 Excludes -- 4.1.4 Overall Aim -- 4.2 Aerodynamic Fundamentals -- 4.3 Geometry -- 4.4 Wing/Body Combination -- 4.4.1 Lift Force -- 4.4.2 Downwash -- 4.4.3 Pitching Moment -- 4.4.4 Aerodynamic Centre -- 4.4.5 Drag Force -- 4.5 All-Moving Tail -- 4.5.1 Lift Force -- 4.5.2 Pitching Moment -- 4.5.3 Drag Force -- 4.6 Flight Trim -- 4.7 Flight Stability -- 4.8 Trim Drag -- 4.8.1 Minimum Drag -- 4.8.2 Relative Speed and Relative Drag -- 4.8.3 Variation of Minimum Drag Speed -- 4.8.4 Minimising 'Minimum' Drag -- 4.9 Steady-State Flight Performance -- 4.9.1 Definitions -- 4.9.2 Airspeeds for Maximum Endurance and Maximum Range -- 4.9.3 Range and Endurance -- 4.9.4 Alternative Form for Jet Aircraft Range and Endurance -- 4.9.5 Fuel Required to Carry Fuel.

4.10 Dynamic Modes -- Chapter 5 Gas Turbine Dynamics -- 5.1 Introduction -- 5.1.1 The Importance of Gas Turbines -- 5.1.2 What Chapter 5 Includes -- 5.1.3 What Chapter 5 Excludes -- 5.1.4 Overall Aim -- 5.2 Ideal Gas Properties -- 5.2.1 Equation of State -- 5.2.2 Energy, Enthalpy, and Entropy -- 5.2.3 Specific Heat Capacity -- 5.2.4 Adiabatic Gas Ratio -- 5.2.5 Compressible Gas Properties -- 5.2.6 Polytropic Processes -- 5.3 Gas Dynamics -- 5.3.1 Fundamental Relationships for Gas Flow -- 5.3.2 Speed of Sound -- 5.3.3 Bernoulli's Equation -- 5.3.4 Stagnation Conditions -- 5.4 Engine Components -- 5.4.1 Duct -- 5.4.2 Junction -- 5.4.3 Compressor -- 5.4.4 Split Compressor -- 5.4.5 Combustor -- 5.4.6 Turbine -- 5.4.7 Nozzle -- 5.5 Engine Dynamics -- 5.5.1 Shaft Speed Variation -- 5.5.2 Massflow Variation -- 5.5.3 Pressure Variation at Constant Temperature -- 5.5.4 Pressure and Temperature Variation -- 5.6 Engine Models -- 5.6.1 Turbojet Engine -- 5.6.1.1 Turbojet Specification -- 5.6.1.2 Turbojet Initialisation -- 5.6.1.3 Turbojet Physics -- 5.6.1.4 Turbojet Dynamics -- 5.6.2 Turbofan Engine -- 5.7 Gas Properties Data -- 5.7.1 Summary



of Gas Properties -- 5.7.2 Gas Mixtures defined by Mass Fractions -- 5.7.3 Gas Mixtures defined by Mole Fractions -- 5.7.4 Dry Air -- 5.7.5 Fuel/Air Combustion Products -- Chapter 6 Additional Topics -- 6.1 Introduction -- 6.1.1 Expanding the Scope of Volume 2 -- 6.1.2 What Chapter 6 Includes -- 6.1.3 What Chapter 6 Excludes -- 6.1.4 Overall Aim -- 6.2 Structural Models -- 6.2.1 Equations of Motion -- 6.2.2 Coordinate Transformations -- 6.2.3 Coupled Structure -- 6.2.4 Wing-Fuselage Structure -- 6.2.5 Whole Aircraft Structure -- 6.3 Mass Distribution -- 6.3.1 Mass Properties -- 6.3.2 Transforming Mass Properties -- 6.3.3 Combining Mass Properties -- 6.3.4 Fuel Mass Distribution -- Bibliography -- Index -- EULA.

Sommario/riassunto

This comprehensive volume focuses on the computational modeling and simulation of aircraft dynamics, a crucial aspect of aerospace engineering. It delves into principles of flight simulation, aircraft systems, and unmanned aerial systems (UAS) integration into civil airspace, addressing policy, regulations, and strategy. The book provides an in-depth exploration of topics such as flight dynamics, control of aero and space vehicles, and the design and development of aviation systems. It is an invaluable resource for aerospace engineers, researchers, and professionals involved in aircraft design and simulation, offering insights into both theoretical and practical aspects of aviation technology.